Gaya APA
Wentz, Charles A.. (1998).
Safety, Health, and Environmental Protection (Ed. 1, Cet. 1).
United States of America:
McGraw-Hill.
Gaya Chicago
Wentz, Charles A..
Safety, Health, and Environmental Protection.
Ed. 1, Cet. 1
United States of America:
McGraw-Hill,
1998.
Textbook.
Gaya MLA
Wentz, Charles A..
Safety, Health, and Environmental Protection.
Ed. 1, Cet. 1
United States of America:
McGraw-Hill,
1998.
Textbook.
Gaya Turabian
Wentz, Charles A..
Safety, Health, and Environmental Protection.
Ed. 1, Cet. 1
United States of America:
McGraw-Hill,
1998.
Textbook.